Stop setting cache timeout in TravisCI
Stop setting cache timeout in TravisCI

It refers to the caching command timeout, not how long before the caches
expire as I had thought.

CZCV/s-dilation-caffe,CZCV/s-dilation-caffe,gnina/gnina,CZCV/s-dilation-caffe,gnina/gnina,gnina/gnina,gnina/gnina,gnina/gnina,CZCV/s-dilation-caffe,gnina/gnina